Self-service registration is an essential and commonly used feature for Okta customers. Okta Classic had this feature as part of the directory section in the admin settings page, and it’s available in Okta organizations (orgs) with a feature flag (SELF_SERVICE_REGISTRATION). An admin can create attributes as part of the profile in Universal Directory and add those attributes to the Self-Service Registration Policy. In the classic flow, when an end user signs up for a new account, they are presented with a registration form with the fields set via the policy. Okta Identity Engine’s (OIE) release brought many improvements in modernization and flexibility. Some of the improvements involve the endpoints and policies associated with user registration. On OIE, the registration policy is part of the new Profile Enrollment Policy. These policies live under Security -> Profile Enrollment on the admin console. Progressive profiling is a feature.